Instrument Structure
3 daysAccelerometers at foundation, mid-height, roof.
Advanced1-2 weeks
Building Seismic Response Guide
Learn building seismic response from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
structural engineersinstrumentation teams
Workflow
Identify Modal Frequencies
1 dayTransfer functions from ambient or event data.
Compute Inter-Story Drift
1 dayIntegrate accelerations with baseline correction.
Assess Damage Indices
4 hoursApply Park-Ang; recommend inspection if drift high.
Checklist
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Planning
Preparation
Safety
Execution
Reference Materials
ASCE 41Standard
IO drift limits often 0.5–2% inter-story by performance level.
Transfer FunctionFormula
H(f) = S_xy/S_xx — peaks are modal frequencies.
Drift TriggersTable
Inspection thresholds.
| Drift | Risk | Action |
|---|---|---|
| 0.2% | Low | Monitor |
| 0.5% | Mod | Inspect |
| 1.0% | High | Restrict |
Label in Field
Label samples immediately with date, GPS coordinates, and habitat notes.
Chain of Custody
Maintain sample integrity from collection through lab analysis.
Wildlife Safety
Know venomous species and territorial animals in your study area.
Safety Notes
- Roof work requires fall protection.
- Only licensed engineers interpret structural adequacy.